From 08e75e754a6d9838e490b74551d19fc04d0fd6f9 Mon Sep 17 00:00:00 2001
From: Javi Merino <javi.merino@arm.com>
Date: Fri, 14 Aug 2015 18:56:56 +0100
Subject: [PATCH] PM / devfreq: cache the last call to get_dev_status()

The return value of get_dev_status() can be reused.  Cache it so that
other parts of the kernel can reuse it instead of having to call the
same function again.

Cc: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Javi Merino <javi.merino@arm.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
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